| Secret codes Celkon A21 |
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| Screenshot Celkon A21 |
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OS: Android 4.2.2 (Jelly Bean) CPU: Quad-core 1.3 GHz Cortex-A7 Display: 4" inc Camera: 3.15 MP,
Single |
| Hardware and OS Celkon A21 | |
| Operating system: | Android 4.2.2 (Jelly Bean) |
| Processor: | Quad-core 1.3 GHz Cortex-A7 |
| Chipset: | Mediatek MT6582 (28 nm) |
| GPU: | Mali-400MP2 |
| Internal memory: | 512 MB, 256 MB RAM |
| External memory: | microSD, up to 32 GB |
| Display Celkon A21 | |
| Size: | 4" inc |
| Resolution: | 320 x 480 px |
| Touchscreen: | capacitive touchscreen |
| Screen-to-Body Ratio: | 57.8% |
| Display area: | 47.6 cm2 |
| Display aspect ratio: | 3:2 (height:width) |
| Pixel Density: | 144 PPI |
| Connectivity Celkon A21 | |
| 2G Network: | GSM 900 / 1800 - SIM 1 & SIM 2 |
| Wi-Fi: | Wi-Fi 802.11 b/g/n |
| Network: | GSM / HSPA |
| SIM card: | Dual SIM (Dual stand-by) |
| Bluetooth: | 4.0, A2DP |
| Edge: | Yes |
| GPRS: | Yes |
| GPS: | No |
| Speed: | HSPA |
| USB: | microUSB |
| Camera Celkon A21 | |
| Main camera: | 3.15 MP, Single |
| Specs: | 3.15 MP |
| Video: | Yes |
| Selfie camera: | 1.3 MP, Single |
| Specs: | 1.3 MP |
| Multimedia Celkon A21 | |
| 3.5 mm Jack: | Yes |
| Radio: | FM radio |
| Design Celkon A21 | |
| Colors: | Black, Blue, Red |
| Dimensions: | 124.8 x 66.1 x 10.8 mm |
| Weight: | 115.3 g |
| Battery Celkon A21 | |
| Battery capacity: | 1500 mAh, Li-Ion |
| Battery life: | Stand by time- Up to 120 h (3G) Talking time- Up to 8 h (3G) |
| Other Celkon A21 | |
| SAR: | SAR EU - 0.99 W/kg (head) 1.39 W/kg (body) |
| Release date: | 2014 |
| Sensors: | Accelerometer |
